The estate is based around the Napanook vineyard, which is notable for being one of the first sites planted to grapes in the Napa Valley. George Yount, who gives his name to the Yountville appellation, set up a vineyard here in 1838 and, since then, the 50-hectare (124-acre) site has been owned by all manner of Napa stalwarts. Moueix went into partnership in 1982 with Robin Lail and Marcia Smith, the daughters of Inglenook’s John Daniel Jr, and, in 1995, took over as the sole owner. Since then, a second vineyard has been added to the Dominus portfolio, this time in Oakville.